Mechanism for dispensing material from rolls



April 19, 1927.

W. M. WHEILDON MECHANISM FOR DISPENSING MATERIAL FROM ROLLS Filed Feb. 4, 1922 2 Sheets-Sheet l I five 11/202 Wv'ZZia 711M WnQeZJZ don, ey

M I CH 6- W. M. WHEILDQN MECHANISM FOR DISPENSING MATERIAL FROM ROLLS April 19, 1927.

2 Sheets-Sheet 2 Filed Feb. 4. 19 22 I I Q:-

, i J/ 'y,

. Inveni'or:

VVz'ZZLiaml-I. WizerJZdorm Patented Apr. 19, 1927.

VIILLIAM M. WHEILDON', OF

H. enema,

FRAMINGHAM, MASSACHUSETTS, ASSIGNOR T EDWARD I OF FRAMINGHAM, MASSACHUSETTS.

MECHANISM FOR DISPENSING MATERIAL FROM ROLLS.

Application filed February This invention relates to means for dispensing material from rolls a ml is particularly applicable to rolls of flat strip which is wound around My invention finds a useful and around upon itself.

application in connection with machines for wrapping tires, wire CO1lS and like annular articles with a strip of paper helically applied and for purposes of illustration 1 shall invention as applied particular to such a machine. embodiment of my here 'desc ibe the The invention shown provides in a substantially unitary structure for several functions,

the control of the tension on the paper as it is drawn from the supply roll, the posi tioning of the paper roll on its support and the folding over of one edge of the paper to make a wrap of the general. type disclosed in the patent to Dixon 351.58%, October 28, 1886. It will be understood, however, are comprehended within the s vention which fulfill fewer functions or but one thereof.

My invention that various devices cope of my inthan all of these will best be understood by ings, wherein Fig. 1 is fragmentary elevation of a portion bf a shuttle of a tire wrapping showing a device illustrative tion in place thereon;

machlne of my inven- Fig. 2 is a plan view on a larger scale of the combined brakim mg device;

9;, folding and position- Fi 3 is a section on the line 3-3 of Fig.

1; and

Figs. 4, 5

and 6 are sections on the lines i t, 5-5 and 66 of Fig. 1, respectively.

Referring to Fig. have there shown a portion 7 1 of the drawings, 1

of the partly annular shuttle of a wrapping machine of known type adapted to be tire or like article T and wrapping strip 9 which drawn off by around the article and thus wrapping around the latter.

revolved around a carrying a roll of is adapted to be the rotation of the shuttle applied as a In the form of my invention shown the roll 9 of wrapping strip 1s rotatably supported on spindle 11 projecting from the face of the shuttle 7 and over which the roll 4. 1922. Serial No. 534,127.

is adapted to be placed from the unobstructed outer end of the spindle 11. Preferably the roll turns perfectly freely on the spindle 11 and also is free for longitudinal movement thercalong, suitable means as hereinafter described being provided for maintaining it in position on the spindle during the operation of the machine and also for controlling the rotation thereof in such manner that a force will be applied to the roll resisting the unwinding thereof so that the material will be applied to the tire or similar article under a uniform tension.

Pivoted on a suitable spindle 13 projecting from the face of the shuttle, preferably in parallelism with the spindle 11 which supports the roll, and suitably spaced from the face of the shuttle as by means of the boss or sleeve 14:, is a member having relatively angularly disposed and oppositely extending arms 15 and 17, the arm 15 being of such length as to extend into the neighborhood of the roll and having an end portion presented in opposition to the same so that it may swing in the manner shown in Fig. 1 into contact with the cylindrical face or side of the roll. The strip of material is trained around the twoarms 15 and 17 and the tension of the material acting on the lever arm 17 tends to swing the arm 15 clockwise viewing Fig. 1 and bring it into contact with the roll and this action may serve to control the rotation. of the same in amanner presently to be described.

As best shown in Fig. 2 in order to guide the wrapping strip to the article in such a way as to compensate for the pitch of the helical wrapping and also for other purposes which will appear hereafter, the face of the arm 17 may be cant-ed or setat an angle to the spindle 13 so that the path of the outer margin of the strip over the arms 15 and 17 longer than the path of the inner margin. The arm 15 may be normally swung counterclockwise viewing 1 by means of a spring 19 adapted to draw the same against a suitable stop 21 and the tension of the strip acting through the r m 17 serves to swing the latter against tl sistance of the spring and causes it to follow the roll as the size of the latter diminishes, for example, from the dotted line position at Fig. 1. to the full line position which represents the roll of material partially exhausted.

In. accordance with my invention 1 proride for controlling;- the rotation of the roll of material by means of a braking force applied to the bases ot the roll adjacent the 1.ie1.'iphery thereof and this is lserein ellectcd by providing the arm 1.?) with suitable flanges :33 and :25 between which. as bestshown in Fig. 3, the side portion of the roll is adapted to enter and which will bear trictionally on the bases of the roll. Herein the flange 2-3 is a liXGtl flange secured to the inner side of the arm 15 and the flange is in the form of a yieldable strip secured at its end remote from the roll by the screw 27 and tensioned inwardly towards the flange 23 by means of the leaf spring 29 overlying the outside of the tlanpge and adapted to be adjustably tensioncd by adjusting: nut. 31. The side of the roll ei'iteringr between the two flanges tends to spread them apart against the s 'iring resistance in the manner illustrated in Fig. 2: which shows the flange 25 displaced from the edge of the arm 15 and consequently the two flanges bear frictionally against the bases oi the roll. Fret? erably the margins of the flanges are flared outwardly as shown in Fig. 3 to facilitate the entrance of the edge oi the roll therebetween, the roll wedging the two flanges apart against the force of the spring 29.

By such a construction as that just described as an example the tension on the paper strip resisting the unwii1din i of the supply roll is applied substantially where the strip leaves the roll and is not a ticcted by the din'iinishine' size of the roll which turns perfectly freely on the spindle 11. Since the braking pressure is applied on the bases of the roll rather than on the cylindrical sin-face thereof an adequate pressure may be exerted without deforming the roll. H a brake member were pressed against the cylindrical surface of the roll it would, it the pressure were of adequate amount, tend to sink into the roll and form a depression are which would interfere with the proper operation of the device. This wave would be particularly marked in cases where crinkled paper is used as in making the package disclosed in the atent to E. H. lineier. 128M167. October 2; 1918.

Since the rotation of the roll is controlled at the periphery thereof. the roll 9 may turn pertcctly freely on the spindle 1.1. This permits the use oi rolls having no core or merel a core ol cheap and flimsy construe tion designed to keep open the hole in the center of the roll until it is used. lhis distinguishes from devices controlling the tension on the roll by means operatingthrough the-axisi-ot" rotationthereot and wherein a Core of substantial construction is required.

The braking mechanism just described also serves as an exaniple of means :tor positioning the roll 9 on the spindle ill so that: it will not be displaced over the free end ol the latter during: the use ot the machine. ltcl'erringr to Fin. 1, when the Il'HlClllIlG is not in use the spring ll) will draw the arm 15 away from the spindle it and leave the latter pa-rlcctly unobstructed so that the roll can ii rcclylrc placed thcrcover. The end ot the material is then led over the arms 15 and it to the article and the machine started. The tension on the material will then swing the arm in up and the roll. will be properly centered by the tla 'ine' ede'cs ot the thine es 23 and 25. The flange will extend over the outer base o l the roll and position the same 215,12ii1ist outward movement, that is, movement toward.- the right in Fig. 23. The roll is thus held in position during the operation of the machine and new rolls are rcry conveniently applied to the spindle and ex.- hausted ones quickly removed.

Organized snbstanti: lly as a unit with the mechanism heretofore described .i may pro- Vide means for folding the niaiyrin ol' the paper strip the construction herein illustrated being: designed to fold under the outer margin of the strip. The tolding mechanism about to be described mightbe organized coaxially as a part of the member which includes the oppositelv ext-ending: arms 15 and 1? to turn therewith but I have herein (see Figs. t to 6) shown it in the term oi an element 33 mounted on the spindle 11 and keyed to the shuttle by means of the pins 35 to res' it; rotation. the arms l? and I? having? a hub-lilac connecting portion 36 embracing a reduced part of the member 33 and. turning! thereon, portions oi the hub 36 and of the surfaces on the arms 15 and fl? merging: into siu iportine" surfaces of the member 33 in the manner illustrated in Figs. 92. 4:. li and t3 and clearly to he understood as the description pro ccds.

My invention contemplates as a preferred form a mechanism wherein the strip may be led from the supply roll 9 to the article to be wrapped and associated with the various other mechanisms by means of a simple movement oi" superposition without the ot' threading the strip through any For this purpose a :t'olding meeha: organized in conjunction with the supportingsurfaces of the arms 15 and 17 in such a manner that an unfolded portion at" the strip between the ends thereof may be freely pll'lced therein from above. Herein the toldiiu mechanism is organized about a cylinth'ical segment centered on the spindle 13 and is in part in the term of an open trough of segmental cylindrical form which receives the strip. Referring to Fig. 5 one flange of the trough may be an extension of the flange 23 and the other may be a as it: is applied to the article,

ion

flange 37 substantially centrally arranged and which, for constructional reasons readily understood, is shown as a separate piece 39 forming the outer end of the member 33. The bottom of the trough is formed in part by a portion of the member 33 and herein also by the hub 36 of the pivoted member which swings thereon. As the strip is drawn over the arms 15 and 17 and through this trough, the outer marginal edge thereof is folded inwardly and in the present instance the arrangement is such that the edge is folded underneath. For this purpose a portion of the supporting surface, preferably extending beyond that end of the flange 37 which is nearest the roll (see Fig. is cut away as indicated at eti as may also be a portion of the margin of the arm 15 leading theretoin order to provide a convex surface supporting the strip of less width than the unfolded strip so thata margin thereof is unsupported in the manner readily understood by reference to Fig. l. The member 33 is undercut (see Fig. 5) adjacent this .cut away portion and there is thus provided an overhanging flange 43 having a free edge over which the pap-er may be shaped. When the strip is tensioned around the convex surface adjacent the pivotal axis 13 the unsupported margin thereof tends to collapse over the free edge adjacent the cut away portion 41 and to bend inwardly to the position shown in Fig. i. This action is aided in the example of the invention shown by the canted disposition of the face of the arm 17 illustrated in Fig. 2 which throws an increased tension on the unsupported margin. As the bent over portion of the strip travels around the convex surface, a'suitable guide surface 45 may be arranged to cooperate therewith to turn it inwardly about the flange 43 so that it assumes'what may be ref-erred to as a folded over position as distinguished from the bent over position shown in Fig. 4E. Herein this guide surface is formed on the inner face of the member 39 and it serves to bend the paper over the flange 43 and preferably the parts are so arranged (see Fig. 5) that the guide surface 13 will come in contact only with the side of the bent over marginal portion of the paper so that the edge of the caper will not come in contact with any of the parts of the device since the edge of the paper has a high cutting and wearing capacity. The-guide surface 45 may serve simply to give the paper an initial bend and direction which it Wlll follow an account of its own stifiness or might be arranged gradually to follow and shape the folded device.

To release the infolded margin of the paper from beneath the flange 43 the latter preferably terminates at 47 (Fi 2) and, since the surface of the member 83 on the further side is preferably formed as a continuation of the outer surface of the said member on the nearer side on this end of the flange,- the construction has the aspect of a slot through which the folded edge of the aper is drawn. Suitable means may be provided for pressin folded margin of the paper and I have herein (see Fig. 2) shown a presser 49 formed of a piece of piano wire or other light durable material having one end secured to the inner face of the flange 37 and extending out- \vardly over the face of the member 33 beyond the slot 47 and downwardly towards the same. The wire preferably has a laterally bent end :31 closely overlying the surface of the member33 beyond the slot -17 so as to press down the folded edge of the paper after it issues from that slot. Preferably the end of the wire passes loosely through a suitable opening 53 (Fig. 6) at the end of the flange 37. The Wire may thus spring to one side being laterally yieldabie and thus offers no substantial resistance to the insertion of the strip from the open side of the trough defined by the flanges 23 and 37 when the machine is started.

I have described in detail the particular form of my invention shown in the drawings in order that the construction and operation of that particular device might be well understood and not because all the features described are essential to my invention in its broader aspects. What I do claim as new and desire to secure I shall express in the following claims.

Claims 1. In combination with a support for a roll. of material means for controlling the feed of material therefrom comprising a member opposing the side of the roll ant having flanges adapted forcibly to bear against the bases thereof as said member is moved toward the side of the roll.

In combination with a support for a roll of material means for controlling the feed of material therefrom comprising a member opposing the side of the roll and having spring pressed flanges between which the bases of the roll enter to press them apart.

3. In combination with a support for a roll of. material means for controlling the feed of material therefrom comprising a member opposing the side of the roll and having flanges adapted to bear on the bases thereof and means over which the material is trained to render tension on the material effective to bring said member into cooperation with the roll.

4. In combination with a support for a roll of material means for controlling the feed of material therefrom comprising a member opposing the side of the roll having spring pressed flanges between which the bases of the roll enter to press them apart a down and creasing the All by Letters Patent and means over which the material is trained to render tension on the material etiective to bring said member into cooperation with the roll.

5. .ln con'ibination with a support for a roll oi material means tor controlling the feed of material therefrom comprising a member oppoi-ting the side (it the roll and having spring pressed flanges between which the bases ot the roll enter to press them apart, said llanges having llaring edges.

(5. in combination with a support for a roll o'l material means for controlling the teed or material from the roll commising a pivoted lever over a portion of which the material is trained and having an end opposingthe side of the roll and having relatively yieldablc flanges between which the side ol the roll caters which end is adapted to be brought into cooperation with said roll by tension on the material.

In combination with a support- ;tor a roll of material means for controlling the teed of material from the roll coinlirising :i pivoted lever over a portion of which the material is trained and having an end posing the side ot the roll and having rela tively 'ieldable tlanges between which the side of the roll enters and means tending to withdraw said end from the roll, tension on the material serving to bring it into cooperation with said roll against the action of said means.

ti. in combination with a loll o t material means tor controlling the teed of material from the roll (JOIDPllSlllg a pivoted lever having a portion over which the material is trained and having an end opposing the side of the roll, the lever having a tlange adapted to bear trictionally on a base ot' the roll adjacent the eircumt'erencc thereof, which end is adapted to be biought into COOIXl'iltlOIl with the roll by tension on the material.

9. .ln coi'nbination with a support for a roll at matmhial means for controlling the teed of material from the roll comprising a pivoted lever having a portion over which the material'is trained and having an end opposing the side of the roll, the lever having a resiliently yieldable tlange with a liaring margin, which flange adapted to bear trictionally on a base of the roll adjacent the circumference thereof, which end is adapted to be brought into cooperation with the roll by tension on the material.

it). In cimibination with a support for a roll of material on which the roll is free to rotate and to shit't laterally, means to posi* tion the roll comprising an element opposing the side of the roll and having arms to extend beside the bases thereof and means operated by the tension of the material for moving said element into cooperation with the roll.

support for a 11. In combination with a supportlor a roll oi material having a tree end over which the roll may be placed means to hold the roll on the support comprising a member movable to overlie the base ol the roll nearer raid free end. means tending to withdraw said member from the roll and means over which the material is trained and rendered oll'cctive by tension thereon for moving said member into cooperative relation to the roll.

12. la combination with a support :tora roll of material having a free end over which the roll may be placed means to hold the roll on the support comprising an angular member adapted to embrace the margin ot' the roll adjacentsaid free end, means tending to withdraw said member from the roll and means over which the material is trained and rendered ell'ective by tension thereon-for moving said member into cooperative relation to the roll.

13. In combination with a support-tor a roll of material having a free end over which the roll may be placed means to hold the roll on the support comprising a pivoted lever having a portion over which the material is trained and an end opposing the side ol the roll having a'llange adapted to overlie the base thereof nearer said free end,

tens-ion on the nniterial serving to swing said end into cooperation with the roll.

1-4. In combination with a support for a roll of material lniving a free end over which the roll may be placed means to hold the roll on the support comprising a pivted lever having a portion over which the material is trained and an end opposing the side of the roll havingllanges relatively resiliently yield-able between which the side ot' the roll enters, tension on the material serving to swing said end into cooperation with said roll.

15. In combimition with a support for a roll of material having a tree end over which the roll may be placed means to hold the roll on the support and means rendered effective by tension on. the material to apply a force resisting unwinding of the roll, said means also serving to hold the roll on the support.

16. In combination-with a support for a roll of material having a tree end over which the roll may be placed means to hold the roll on the support and a member adapted to he moved into cooperation with the roll to hold it on the support, said member also servingto apply atorce resisting unwinding otthe roll.

17. lncombination witha roll of fiat material and means for rotatably supporting the same, means fol controllingthe unwinding of the material comprising mechanism arranged trietionally to bear on the material at a base of the roll in a relatively narrow zone along the periphery thereof.

18. In combination with a support for rotatably receiving a roll, a member pivoted adjacent thereto and having oppositely ex-v tending arms over which the material may pass, one arm opposing the side of the roll.

19. In combination with a support for rotatably receiving a roll, a member pivoted adjacent thereto and having oppositely extending arms over which the material may pass, one arm opposing the side of the roll and having relatively yieldable fianges between which the roll may enter and adjustable means for resiliently tensioning the flanges.

20. In combination with the shuttle of a machine for applying helical wrappings a roll support thereon, a spindle carried by the shuttle substantially parallel with the aXis of the roll, a member pivoted on the spindle having oppositely extending arms over which the material may pass, one arm opposing the side of the roll and the face of the other being canted at an angle to the spindle.

21. In combination with the shuttle of a machine for applying helical wrappings a roll support thereon, a spindle carried by the shuttle substantially parallel with the axis of the roll, a member pivoted on the spindle having oppositely extending arms over which the material may pass, one arm having an end opposing the side of the roll having flanges relatively resiliently yieldable adapted to be forced apart by the roll and the face of the other arm being canted at an angle to the spindle.

22. In combination with the shuttle of a machine for applying helical wrappings a roll support thereon, a spindle carried by the shuttle substantially parallel with the axis of the roll, a member pivoted on the spindle having an arm extending therefrom on the side away from the roll over which the material may pass to the article to be wrapped, the face of said arm being canted at an angle to the spindle thereby to lead the materiai to the article wrapped at an angle.

23. A folding device comprising a supporting surface to receive a strip having an edge over which a marginal portion of the strip may bend under tension and a cooperating support extending from the first and canted to present a higher side adjacent said edge.

24-. A folding device comprising a convex body and an extension therefrom, the whole presenting an unobstructed upper portlon over which a portion of strip between the ends thereof may be freely placed, a portion of said body being cut away at one side whereby to leave a marginal portion of such strip unsupported, said extension sloping downwardly transversely from said portion. 25. A folding device comprising an open trough adapted to receivefreely from above a portion of strip between the ends thereof, the interior surface of said trough being formed to fold over the margin of the strip as it is drawn therethrough and a surface leading from the trough set at an angle to throw an increased tension on the margin of the strip which is to be folded.

26. In combination with means for rotatably supporting a roll of material means for controlling the feed of material therefrom comprising a pivoted member having oppositely extending arms over which the strip may be trained, one of the arms opposing the side of the roll, and means organized in conjunction with said member for folding the margin of the material as it passes over said member.

27. In combination vvith means for rotatably supporting a roll of material means for controlling the feed of material therefrom comprising a pivoted member having oppositely extending arms over which the strip may be trained, one of the arn'is opposing the side of the roll and means organized in conjunction with said member for folding the margin of the material as it passes over said member, the whole presenting an unobstructed surface over which a portion of the material between the ends thereof may be freely placed.

28. In combination with means for rotatably supporting a roll of material adapted freely to receive the roll from one end thereof means for controlling the feed of material therefrom comprising a pivoted member having oppositely extending arms over which the strip may be trained, one of the arms opposing the side of the roll and having flanges between which the side of the roll enters and means organized in conjunction with said member for folding the edge of the material as it passes over said member.

29. In combination with means for rotatably supporting a roll of material adapted freely to receive the roll from one end thereof, a pivoted member having a portion adapted to extend over the outer face of the roll to retain it on the support, said member having a surface over which the material may pass whereby tension thereon will bring said portion into cooperating relation with the roll and means organized in conjunction with said member for folding the margin of the material as it passes over said member,

30. In combination with means for rotatably supporting a roll of material, a device for folding the edge thereof the parts where of are arranged and correlated to provide a structure having as a whole a generally segmental cylindric form and substantially coaxially organized means rendered effective by the draft of the material as it passes through the folding device to apply tension to the roll resisting unwinding thereof.

31. In combination with means for rotat- Elm ably supporting a roll of material, a device for folding: the edge thereof the parts whereof are arranged and correlated to provide a structure having); as a Whole a generally segmental. cylindric .t'orm and a member coaxially pivoted and having oppositely extending arms over one of which the material may pass and the other of which extends to the roll.

32. in combination with means for rotatably supporting a. roll of material, mechanism for braking the roll comprising a swinging arm the movement of which controls the braking pressure and about which the strip is looped to operate the arm by the tension of the strip, said arm ha ring a generally cylimlrical supporting surface for the loop of the strip narrower than the strip and ha vine a free edge over which the marginalnirtion oi the strip may collapse. said meehanism also including a turning device for folding over such collapsed portion.

33. ln combination with means for rotat ably supporting a roll oi material, mechanism for ln'akino; the roll comprising a swinging arm the movement of which controls the braking pressure and about which the strip looped to operate the riding a surface for supporting the greater arm: by the tension or the strip, said n'ieclianism proportion of the Width of the strip Where it is deflected to etlect such looping but Which has a free edge over which the n'iarginal portion or the strip may collapse and a turning device organized with said arm at the bend of the loop thereorcr for folding over said portion.

3a. In combination with a shuttle, means for rotatably supporting a roll of material thereon, a mechanism for braking the roll, also rarried on said shuttle con'iprising a swinging arm the movement of which controls the liiraking pressure and providing surfaces projecting in overhung;- relation from said shuttle and unobstructed in a plane parallel to said shuttle, over which surfaces a portion of the unlt'olded strip be tween the ends thereof may be laid in looped form to provide for transmittinp, the tension of the strip to said arm to operate the same and including a surliare narrower than said strip and having a free ed a'eovtr which a marginal. portion thereof may collapse, and a turning device organized with said mecl1a-- nism laterally of a surface supporting the loop to turn. over such collapsed portion.

In testimony whereof, I hare sign-ed my name to this specification.

WILLIAM M. lVHElLDON. 

